Chapter 7
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UM10350_PCNC770_Manual_0916A
Programming
To turn all coolant o, program: M09
It is always OK to use any of these commands, regardless of what coolant is on or o.
7.7.5 Override Control – M48 and M49
To enable the speed and feed override, program: M48
To disable both overrides, program: M49
It is OK to enable or disable the switches when they are already enabled or disabled.
7.7.6 Feed Override Control – M50
To enable the feed rate override control, program: M50 P1
The P1 is oponal.
To disable the feed rate control, program: M50 P0
When feed rate override control is disabled, the feed rate override slider has no inuence, and all
moon is executed at programmed feed rate (unless there is an adapve feed rate override acve).
7.7.7 Spindle Speed Override Control – M51
To enable the spindle speed override control, program: M51 P1
The P1 is oponal.
To disable the spindle speed override control, program: M51 P0
When spindle speed override control is disabled, the spindle speed override slider has no inuence,
and the spindle speed is equal to the value of the S-word (see Spindle Speed later in this chapter).
7.7.8 Set Current Tool Number – M61
To change the current tool number while in MDI or manual mode, program: M61 Q~
Word Denition
Q~ Tool number
One use is when you power on the system with a tool selected but the tool turret is set for a
dierent tool to that indicated. You can set that tool number without doing a tool change operaon.
It is an error if: Q~ is not 0 or greater
7.7.9 Set Output State – M64/M65
NOTE: These commands are only useful when the mill is equipped with the USB I/O Module (PN 32616).
There are four output relays available on the USB I/O module.